Theoretical study of transient thermal conduction and temperature distribution generated by pulsed laser
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- Lu, Y., Zhang, S. & Cheng, J. Appl Phys B (2000) 70: 85. doi:10.1007/s003400050013
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Studied in this paper is the problem of transient thermal conduction and temperature distribution generated by laser pulses in a planar sample. Both of the classical parabolic and the hyperbolic equations of heat transport have been solved analytically and numerically, and the results indicate that the correction term of a finite thermal propagation velocity included in the hyperbolic equation can be ignored in the normal case. However, under some special conditions, such as in low-temperature or in a short-transient process, the influence of the propagation term must be considered. In these cases, the thermal conduction will behave as an attenuated wave motion.